Uncle Wang's described opening method is to start with a small position, add more after confirming support during a decline, and add again when returning to the initial position.

For coins priced at $10, reserve $2 for fluctuations; for those within $5-1, reserve $0.1 for fluctuations; for $0.1-0.5, reserve $0.1 for fluctuations.
For example, this coin just now was bought at $0.99. I plan to take profit at $1.1 and have set a stop loss at $0.9. When opening the position, I took 5% of the total. When it dropped to around $0.91, I added 10% to lower the average price, and I set a stop loss at $0.898.
If it hits the stop loss, I lose about 30% of the planned amount. If it rises to $0.95, I take profit.
However, the trend doesn't look good; it's just a false rebound, only going up to around $0.93. At this point, I set the stop loss, and my loss might only be about 30% of the plan.